A skin tone color chart is most useful when it separates how light or deep your skin looks from the undertone beneath it. Use this inclusive reference to find a starting point for clothing, makeup, hair, and metal colors, then test those colors against your own face.
Skin depth describes the visible lightness or darkness range of your complexion. Fair and deep are endpoints, while light, medium, and tan describe the middle range. Depth helps you judge how much visual weight a color can carry near your face, but it does not tell you whether that color is warm or cool.
Undertone is the consistent temperature underneath the surface: warm often reads golden or peachy, cool can read rosy or bluish, neutral sits between them, and olive can combine a muted green-grey cast with warm, cool, or neutral qualities. Olive is not a depth, and it is not automatically warm.
Overtone is the surface color you notice first. Sun exposure, a temporary flush, lighting, skincare, or recent irritation can shift it. A chart should therefore guide observation rather than label your body permanently. It is a color-and-style reference, not a medical classification or diagnosis.
Seasonal color analysis goes one step further. It combines undertone with depth or value and chroma, then places that combination in a palette such as Light Spring, Soft Summer, Deep Autumn, or Deep Winter. The same skin depth can appear in several seasons.